431143040011 has 4 divisors (see below), whose sum is σ = 431497308312. Its totient is φ = 430788771712.

The previous prime is 431143039939. The next prime is 431143040033. The reversal of 431143040011 is 110040341134.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431143040011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431143040051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177132325 + ... + 177134758.

It is an arithmetic number, because the mean of its divisors is an integer number (107874327078).

Almost surely, 2^431143040011 is an apocalyptic number.

431143040011 is a deficient number, since it is larger than the sum of its proper divisors (354268301).

431143040011 is a wasteful number, since it uses less digits than its factorization.

431143040011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354268300.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 431143040011 its reverse (110040341134), we get a palindrome (541183381145).

The spelling of 431143040011 in words is "four hundred thirty-one billion, one hundred forty-three million, forty thousand, eleven".